496596447421 has 2 divisors, whose sum is σ = 496596447422. Its totient is φ = 496596447420.

The previous prime is 496596447407. The next prime is 496596447433. The reversal of 496596447421 is 124744695694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391357843396 + 105238604025 = 625586^2 + 324405^2 .

It is a cyclic number.

It is not a de Polignac number, because 496596447421 - 2⁹ = 496596446909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 496596447421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (496596247421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248298223710 + 248298223711.

It is an arithmetic number, because the mean of its divisors is an integer number (248298223711).

Almost surely, 2^496596447421 is an apocalyptic number.

It is an amenable number.

496596447421 is a deficient number, since it is larger than the sum of its proper divisors (1).

496596447421 is an equidigital number, since it uses as much as digits as its factorization.

496596447421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 61.

The spelling of 496596447421 in words is "four hundred ninety-six billion, five hundred ninety-six million, four hundred forty-seven thousand, four hundred twenty-one".